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METHOD OF OBTAINING AN OXIDE-TYPE VANADIUM-TUNGSTEN CATALYST FOR USE IN PROCESSES OF REDUCING NITROGEN OXIDES BY MEANS OF AMMONIA AND DECOMPOSING NITROGEN (II) OXIDE
METHOD OF OBTAINING AN OXIDE-TYPE VANADIUM-TUNGSTEN CATALYST FOR USE IN PROCESSES OF REDUCING NITROGEN OXIDES BY MEANS OF AMMONIA AND DECOMPOSING NITROGEN (II) OXIDE